The Data Distribution Service (DDS) is a middleware standard and protocol, defined by the Object Management Group (OMG), for scalable, real-time, and dependable data exchange between publishers and subscribers in a distributed system. It implements a data-centric publish-subscribe (DCPS) model where applications communicate by writing and reading data objects, identified by Topics, to a global data space. This architecture provides deterministic latency, Quality of Service (QoS) policies, and automatic discovery, making it foundational for robotics, aerospace, and industrial control systems where reliable, low-latency communication is non-negotiable.




